Taurus V6-182 3.0L FF (1995)
Control Module HVAC: Description and Operation
Electronic Climate Control Module
Control Assembly
EATC Control Assembly
The EATC control assembly is located in the instrument panel and has:
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11 push buttons.
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A variable blower speed control knob for manual input.
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A Vacuum Fluorescent Display (VFD) for displaying the set temperature, the ambient temperature, the function, and the diagnostic codes.
When the system is operating under AUTOMATIC control, the VFD display will show the preferred or target temperature to which the elements
of the automatic control system respond.
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The A/C blower motor speed, under automatic control, varies in response to the ambient temperature changes and a predetermined delay
factor.
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The temperature selection may be increased or decreased in one degree increments between 18° C (65° F) and 29° C (85° F) by pressing
the red button to increase or the blue button to decrease the desired temperature. The system will respond accordingly.
Other control assembly features include:
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A 16° C (60° F) setting for maximum cool and a 32° C (90° F) setting for maximum heat.
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An OUTSIDE TEMP button which, when pressed, will display the air temperature outside the vehicle for four seconds.
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An OFF button which, if pressed, will apply vacuum to close the A/C air inlet duct door, shut off the A/C blower motor operation, and
discontinue the climate control functions through the system.
When the thumbwheel control for the blower motor is rotated out of the position it occupied under the automatic control, it will remain under
manual control until the automatic button is pressed.
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Under automatic control, the A/C blower motor speed varies as required to accommodate the total automatic functions in the system.
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Under manual control, the A/C blower motor speed is constant based on the thumbwheel setting.
An illumination bulb in the control assembly provides backlighting for the VFD window. When the rheostat on the headlamp/parking lamp switch
is rotated, the intensity of the light from this bulb will increase or decrease depending upon the direction of rotation. (The backlighting on the
control assembly, as well as in other instrument panel locations, will dim whenever the light switch is engaged.)
